JP2002263568A - Method for repairing outer wall and repairing structure - Google Patents
Method for repairing outer wall and repairing structureInfo
- Publication number
- JP2002263568A JP2002263568A JP2001070763A JP2001070763A JP2002263568A JP 2002263568 A JP2002263568 A JP 2002263568A JP 2001070763 A JP2001070763 A JP 2001070763A JP 2001070763 A JP2001070763 A JP 2001070763A JP 2002263568 A JP2002263568 A JP 2002263568A
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- Japan
- Prior art keywords
- coating layer
- wall
- finish
- repair
- repairing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、外壁の補修方法お
よび補修構造に関し、詳しくは、建築物の外壁に外装材
および仕上げ塗膜層のひび割れや欠落などが発生したと
きに、外壁を補修する方法と、このような方法で得られ
る補修構造とを対象にしている。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and a structure for repairing an outer wall, and more particularly to a method for repairing an outer wall of a building when cracks or missing of an exterior material and a finish coating layer occur on the outer wall of the building. The method and the repair structure obtained by such a method are covered.
【０００２】[0002]
【従来の技術】建築物の外壁構造として、ＡＬＣ板やセ
ラミック板などの外装板材を貼設し、その表面に仕上げ
塗装を施す技術が知られている。このような外壁構造が
長期間使用されているうちに、外装板材および表面の仕
上げ塗膜層に、細かな亀裂や隙間その他の損傷が生じる
ことがある。これらの損傷個所を放置しておくと、壁面
構造の内部に雨水が浸入したり、損傷個所が徐々に拡が
って、外装板材および仕上げ塗膜層の広い範囲にわたっ
て欠落や剥落が生じることになる。2. Description of the Related Art As an outer wall structure of a building, there is known a technique in which an exterior plate material such as an ALC plate or a ceramic plate is attached and a finish coating is performed on a surface thereof. While such an outer wall structure is used for a long period of time, fine cracks, gaps, and other damages may occur in the exterior plate material and the finish coating layer on the surface. If these damaged portions are left undisturbed, rainwater infiltrates into the wall structure or the damaged portions gradually spread, resulting in chipping or peeling over a wide range of the exterior plate material and the finish coating layer.
【０００３】そこで、外壁の損傷個所は早めに補修して
おくことが望まれる。従来、外壁の補修としては、仕上
げ塗膜層と同じ塗料を、損傷個所を覆うように塗工する
ことが行われている。仕上げ塗膜層と同じ塗料を塗装す
るのであれば、補修個所と周囲の補修しない部分との間
に表面色や質感の違いが生じ難く、補修個所が目立たな
いという利点がある。[0003] Therefore, it is desirable to repair the damaged portion of the outer wall as soon as possible. Conventionally, as a repair of an outer wall, the same paint as the finish coating layer is applied so as to cover a damaged portion. If the same paint as the finish coating layer is applied, there is an advantage that a difference in surface color and texture between the repaired portion and the surrounding unrepaired portion hardly occurs, and the repaired portion is inconspicuous.
【０００４】[0004]
【発明が解決しようとする課題】ところが、亀裂などの
物理的な損傷個所に、仕上げ塗膜層と同じ塗料で補修塗
装を行っても、亀裂などを完全に埋めることができない
という問題がある。補修塗装に用いる仕上げ塗膜層の塗
料は、外装板材の平坦な表面を覆う機能はあるが、深い
亀裂や幅のある隙間などを埋めてしまうような機能は備
えていない。また、補修塗装の塗膜層が、亀裂や隙間の
表面を覆って膜を形成していても、その部分では塗膜層
を支持する外装板材は存在しないので、周囲の仕上げ塗
膜層に比べて塗膜層の機械的強度や耐久性が弱く、その
部分に外力が加わると塗膜が破れたり穴があいたりして
しまう。However, there is a problem that even if a repaired coating is applied to a physically damaged portion such as a crack with the same paint as the finish coating layer, the crack cannot be completely filled. The paint of the finish coating layer used for the repair coating has a function of covering the flat surface of the exterior plate material, but does not have a function of filling a deep crack or a wide gap. In addition, even if the coating layer of the repair coating covers the surface of cracks and gaps and forms a film, there is no exterior plate material supporting the coating layer in that part, so it is compared to the surrounding finish coating layer. Therefore, the mechanical strength and durability of the coating film layer are weak, and when an external force is applied to the portion, the coating film is broken or a hole is formed.
【０００５】本発明の課題は、前記した外壁に生じる亀
裂などの損傷個所を確実かつ強固に補修できるようにす
ることである。An object of the present invention is to make it possible to reliably and firmly repair a damaged portion such as a crack generated in the outer wall.
【０００６】[0006]
【課題を解決するための手段】本発明にかかる外壁の補
修塗装方法は、表面に仕上げ塗膜層を有する既設の外壁
を補修する方法であって、前記既設の外壁に有する古い
仕上げ塗膜層の上に、伸び率４００〜９００％の防水塗
膜層を厚み１．０〜１．５ｍｍで形成する工程(a)と、
前記防水塗膜層の上に、新たな仕上げ塗膜層を形成する
工程(b)とを含む。 〔外壁〕通常の建築物における外壁構造に適用できる。According to the present invention, there is provided a method of repairing an external wall having a finish coating layer on a surface thereof, the method comprising repairing an existing external wall having a finish coating layer on a surface thereof. (A) forming a waterproof coating layer having an elongation of 400 to 900% with a thickness of 1.0 to 1.5 mm on the
A step (b) of forming a new finish coating layer on the waterproof coating layer. [Outer wall] It can be applied to the outer wall structure of a normal building.
【０００７】外壁の基本構造は、通常、ＡＬＣ板やセラ
ミック板などの外装板材を敷設して構成される。外装板
材を使用せずに、モルタル等の壁材料を塗工して構成す
ることもできる。外壁の表面には、仕上げ塗装が施され
る。仕上げ塗装に用いる塗料は、通常の外壁用塗料でよ
い。具体的には、１液性および２液性のアクリルシリコ
ン系塗料（軟質および硬質タイプ）などの塗料が使用さ
れる。仕上げ塗膜層の厚みは、塗料の種類や要求性能に
よっても違うが、通常は、０．１〜０．２ｍｍの範囲に
設定される。[0007] The basic structure of the outer wall is usually constructed by laying an outer plate material such as an ALC plate or a ceramic plate. Instead of using the exterior plate material, a wall material such as mortar may be applied to be configured. Finish painting is applied to the surface of the outer wall. The paint used for the finish coating may be a usual paint for exterior walls. Specifically, paints such as one-pack and two-pack acrylic silicone paints (soft and hard types) are used. The thickness of the finish coat layer varies depending on the type of paint and required performance, but is usually set in the range of 0.1 to 0.2 mm.
【０００８】仕上げ塗膜層を形成する前に、外壁の施工
面にプライマ層を形成しておくこともできる。 〔外壁の補修個所〕このような外壁構造を長期間使用し
ている間に発生する損傷には、仕上げ塗膜層のひび割れ
や剥落がある。外装板材に対する仕上げ塗膜層の浮き上
がりがある。外装板材の亀裂発生や割れがある。隣接し
て施工された外装板材同士の間の隙間発生がある。外装
板材を取付固定している釘やビス、ボルトの錆や腐食が
ある。Prior to forming the finish coating layer, a primer layer may be formed on the construction surface of the outer wall. [Repair location of outer wall] Damage that occurs during use of such an outer wall structure for a long period of time includes cracking and peeling of the finished coating layer. There is lifting of the finish coating layer with respect to the exterior plate material. There are cracks or cracks in the exterior plate material. There is a gap between adjacent exterior plate materials. There is rust and corrosion of nails, screws, and bolts that fix and fix the exterior plate.
【０００９】上記のような外壁構造における損傷個所を
補修する。補修は、１面の外壁全体に施す場合と、外壁
面の一部に施す場合がある。補修作業としては、最初
に、一部が剥落したり浮き上がったりしている部分の仕
上げ塗膜層を除去する作業がある。この場合、外装板材
の表面が露出することになる。仕上げ塗膜層を除去する
必要がなければ、仕上げ塗膜層の上に、新たな補修塗装
を行う。少なくとも、補修が必要な個所を中心にして、
その周辺の仕上げ塗膜層までを覆うようにして、補修塗
装を施す。補修塗装を行う前に、外壁表面の汚れを除去
したり、錆びを落としたり、洗浄したりする作業を行っ
ておくことも有効である。大きな亀裂や隙間は、パテな
どで埋めておくこともできる。[0009] The damaged portion in the outer wall structure as described above is repaired. The repair may be performed on the entire outer wall or on a part of the outer wall. As the repair work, there is a work to remove a finish coating layer in a part where the part is peeled off or rises first. In this case, the surface of the exterior plate material is exposed. If it is not necessary to remove the finish coat layer, a new repair coating is performed on the finish coat layer. At least, focusing on the places that need repair,
The repair coating is applied so as to cover the surrounding finish coating layer. Before performing the repair painting, it is also effective to remove dirt on the outer wall surface, remove rust, and perform cleaning. Large cracks and gaps can be filled with putty.
【００１０】〔防水塗膜層〕防水塗膜層は、水を通過さ
せない防水性を有するとともに、伸び性に優れた塗料材
料を用いる。防水塗膜層の防水性能としては、０ｇ／ｍ
2・２４ｈｒ以上の耐透水性を有するものが用いられ
る。伸び性として、伸び率４００〜９００％を有するも
のが使用される。伸び率が低すぎると、損傷個所を塞ぐ
機能が弱くなったり、施工後の外壁構造の伸縮や変形に
追随したりすることができない。伸び率が大きすぎる
と、膜強度が弱くなったり、外力による変形や傷つきが
生じ易くなったりする。[Waterproof coating layer] The waterproof coating layer is made of a coating material which has waterproofness that does not allow water to pass through and has excellent extensibility. The waterproof performance of the waterproof coating layer is 0 g / m
Those having more than 2 · 24 hr or the water penetration resistance is used. A material having an elongation of 400 to 900% is used as the elongation. If the elongation rate is too low, the function of closing the damaged portion is weakened, and it is impossible to follow the expansion / contraction or deformation of the outer wall structure after construction. If the elongation is too large, the film strength will be weak, and deformation or damage due to external force will easily occur.
【００１１】防水塗膜層の厚みとしては、必要とされる
防水性能や損傷個所の隠蔽機能などを発揮できる程度の
厚みに設定される。具体的には、１．０〜１．５ｍｍの
範囲に設定される。防水塗膜層が薄すぎると、損傷個所
の傷や亀裂などが十分に隠されない。防水塗膜層を形成
する防水塗料としては、通常の塗料材料の中から、前記
条件を満足するものが使用される。具体的な塗料とし
て、湿気硬化型ウレタン樹脂塗料、湿気硬化型アクリル
ゴム塗料などが挙げられる。防水塗膜層は補修施工が完
了した後は外部に露出しないので、塗装色や表面質感な
どは特に制限されないが、表面に形成される仕上げ塗膜
層との密着性が良かったり、仕上げ塗膜層の色や質感に
影響を与えることが少なかったりするものが好ましい。The thickness of the waterproof coating layer is set to such a thickness that the required waterproof performance and the function of concealing damaged portions can be exhibited. Specifically, it is set in a range of 1.0 to 1.5 mm. If the waterproof coating layer is too thin, scratches and cracks at the damaged portion will not be sufficiently hidden. As the waterproof coating material for forming the waterproof coating film layer, one that satisfies the above-mentioned conditions from among ordinary coating materials is used. Specific examples of the paint include a moisture-curable urethane resin paint and a moisture-curable acrylic rubber paint. Since the waterproof coating layer is not exposed to the outside after the repair work is completed, the coating color and surface texture are not particularly limited, but the adhesion with the finish coating layer formed on the surface is good or the finish coating Those which have little influence on the color and texture of the layer are preferred.
【００１２】防水塗膜層の塗装は、通常の建築施工にお
ける塗装技術が適用される。 〔補修仕上げ塗膜層〕防水塗膜層の上に、補修用の新た
な仕上げ塗膜層を形成する。この補修仕上げ塗膜層は、
通常の建築施工における仕上げ塗膜層と同様の材料およ
び施工方法が適用できる。補修仕上げ塗膜層として、既
設の外壁構造に施工されていた元の古い仕上げ塗膜層と
同じ材料および施工方法を採用することができる。この
場合は、補修個所とその周囲の既設の外壁部分との間
に、仕上げ外観や表面質感、表面特性などの違いがなく
なるので、補修個所が目立たない。For the coating of the waterproof coating layer, a coating technique in ordinary building construction is applied. [Repair finishing film layer] A new finishing film layer for repair is formed on the waterproof coating layer. This repair finish coating layer,
Materials and construction methods similar to those for the finish coat layer in ordinary construction work can be applied. As the repaired finish coating layer, the same material and construction method as those of the original old finish coating layer applied to the existing outer wall structure can be adopted. In this case, there is no difference in the finished appearance, surface texture, surface characteristics, and the like between the repair location and the existing outer wall portion around the repair location, so that the repair location is inconspicuous.
【００１３】[0013]
【発明の実施形態】図１に示す実施形態は、外壁に一部
に隙間が発生した部分を補修する方法を示している。図
１(a)に示すように、外壁は、セラミック板からなる外
装板材１０と、外装板材１０の表面に塗装された仕上げ
塗膜層１２とで構成されている。仕上げ塗膜層１２は、
有機，無機塗装で厚み０．１ｍｍに塗装されている。図
示しないが、仕上げ塗膜層１２を形成する前に、外装板
材１０の表面にはプライマ層を形成しておく。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiment shown in FIG. 1 shows a method for repairing a part where a gap has occurred in an outer wall. As shown in FIG. 1A, the outer wall is composed of an exterior plate 10 made of a ceramic plate and a finish coating layer 12 applied to the surface of the exterior plate 10. The finish coating layer 12
It is painted to a thickness of 0.1 mm with organic and inorganic paints. Although not shown, a primer layer is formed on the surface of the exterior plate 10 before the finish coating layer 12 is formed.
【００１４】このような外壁の一部に、ひび割れなどに
よって隙間１４が発生した。隙間１４は、仕上げ塗膜層
１４から外装板材１２の内部にまで及んでいる。この隙
間１４の発生個所を補修する。図１(b)に示すように、
既設の仕上げ塗膜層１４の上に、防水塗膜層２０が塗装
される。防水塗膜層２０を形成する塗料として、ウレタ
ン樹脂塗料またはアクリルゴム塗料が使用される。防水
塗膜層２０の厚みは１ｍｍに設定する。防水塗膜層２０
は、隙間１４の上を十分な厚みで覆っており、防水塗膜
層２０の表面は凹みのない平滑な表面になっている。ま
た、防水塗膜層２０の一部は隙間１４の内部まで入り込
んでいる。防水塗膜層２０と既設の外壁構造とは、強固
に接合されている。A gap 14 is formed in a part of such an outer wall due to cracks or the like. The gap 14 extends from the finish coating layer 14 to the inside of the exterior plate 12. The location where the gap 14 occurs is repaired. As shown in FIG.
The waterproof coating layer 20 is coated on the existing finish coating layer 14. As a paint for forming the waterproof coating layer 20, a urethane resin paint or an acrylic rubber paint is used. The thickness of the waterproof coating layer 20 is set to 1 mm. Waterproof coating layer 20
Covers the gap 14 with a sufficient thickness, and the surface of the waterproof coating layer 20 has a smooth surface without dents. In addition, a part of the waterproof coating layer 20 penetrates into the gap 14. The waterproof coating layer 20 and the existing outer wall structure are firmly joined.
【００１５】防水塗膜層２０の上には、新たな仕上げ塗
膜層２２が施工される。この補修仕上げ塗膜層２２は、
前記した既設の仕上げ塗膜層１４と同じ塗料を同じ塗装
条件で塗装する。補修仕上げ塗膜層２２の厚みは０．１
ｍｍに設定される。防水塗膜層２０および補修仕上げ塗
膜層２２のよる補修は、補修を必要とする隙間１４の発
生個所を中心にして、その周囲の一定の範囲にわたって
行う。このとき、防水塗膜層２０の塗装範囲の外縁より
も補修仕上げ塗膜層２２の塗装範囲を広く設定しておけ
ば、防水塗膜層２０が外部に露出することがない。ま
た、補修部分とその周囲の既設の仕上げ塗膜層１４のま
まの部分との間の境界が目立たなくなる。On the waterproof coating layer 20, a new finish coating layer 22 is applied. This repair finish coating layer 22
The same paint as that of the existing finish coating layer 14 is applied under the same coating conditions. The thickness of the repair finish coating layer 22 is 0.1
mm. The repair with the waterproof coating layer 20 and the repair finish coating layer 22 is performed over a certain range around the location where the gap 14 requiring repair is centered. At this time, if the coating range of the repair finish coating layer 22 is set wider than the outer edge of the coating range of the waterproof coating layer 20, the waterproof coating layer 20 will not be exposed to the outside. Also, the boundary between the repaired portion and the surrounding portion of the existing finish coating layer 14 remains inconspicuous.
【００１６】[0016]
【発明の効果】本発明にかかる外壁の補修方法は、隙間
などが存在する補修個所で、既設の仕上げ塗膜層の上
に、前記した防水塗膜層を形成したあとで、新たな仕上
げ塗膜層を形成する。伸び性に優れ、十分な厚みのある
防水塗膜層が、隙間などの損傷を確実に塞ぎ表面を平滑
にすることができるので、施工後に損傷部分が凹凸など
として現れることが防げる。外力が加わったり、温度環
境の変化による収縮膨張があったりしても、損傷個所が
再び表面に現れたり拡がったりすることが防げる。防水
塗膜層の上に新たな仕上げ塗膜層を形成するので、外観
的には、通常の仕上げ塗膜層を形成した外壁と変わりの
ない状態になり、周囲の外壁に比べて補修個所だけが目
立つようなことも起きない。According to the method for repairing an outer wall according to the present invention, a new finish coating is performed after forming the waterproof coating layer on the existing finish coating layer at a repair location where a gap or the like exists. Form a film layer. The waterproof coating layer, which is excellent in elongation and has a sufficient thickness, can reliably block damage such as gaps and smooth the surface, so that the damaged portion can be prevented from appearing as irregularities after construction. Even if an external force is applied or contraction or expansion occurs due to a change in the temperature environment, it is possible to prevent the damaged portion from reappearing on the surface or spreading. Since a new finish coating layer is formed on the waterproof coating layer, the appearance is the same as the outer wall on which the normal finish coating layer is formed, and only the repair points are compared to the surrounding outer walls. Nothing noticeable happens.
【図１】 本発明の実施形態を表す外壁構造の補修前
(a)および補修後(b)の断面図FIG. 1 shows an outer wall structure according to an embodiment of the present invention before repair.
Sectional view of (a) and after repair (b)
１０ 外装板材 １２ 既設の仕上げ塗膜層 １４ 亀裂部 ２０ 防水塗膜層 ２２ 補修の仕上げ塗膜層 DESCRIPTION OF SYMBOLS 10 Exterior board material 12 Existing finish coat layer 14 Crack part 20 Waterproof coat layer 22 Repair finish coat layer
───────────────────────────────────────────────────── フロントページの続き (72)発明者 高木 光明 大阪府豊中市新千里西町１丁目１番４号 ナショナル住宅産業株式会社内 (72)発明者 杉本 和行 大阪府豊中市新千里西町１丁目１番４号 ナショナル住宅産業株式会社内 (72)発明者 中島 久男 大阪府豊中市新千里西町１丁目１番４号 ナショナル住宅産業株式会社内 (72)発明者 佐久間 英彰 茨城県新治郡千代田町上稲吉2044−６ オ ート化学工業株式会社内 (72)発明者 岩瀬 真一 茨城県新治郡千代田町上稲吉2044−６ オ ート化学工業株式会社内 Ｆターム(参考） 2E176 AA02 AA09 BB25 4D075 CA47 DA27 DB12 DC03 EB38 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Mitsuaki Takagi 1-4-1 Shinsenri Nishimachi, Toyonaka City, Osaka Prefecture Inside the National Housing Industry Co., Ltd. (72) Inventor Kazuyuki Sugimoto 1-chome Shinsenri Nishimachi, Toyonaka City, Osaka Prefecture No. 1-4 National Housing Industry Co., Ltd. (72) Inventor Hisao Nakajima 1-4-1, Shinsenri Nishimachi, Toyonaka City, Osaka Pref. National House Industry Co., Ltd. (72) Inventor Hideaki Sakuma 2044-6 Inayoshi Auto Chemical Industry Co., Ltd. (72) Inventor Shinichi Iwase 2044-6 Kami Inakichi Chiyoda-cho, Niigata-gun, Ibaraki Pref. F-term in Auto Chemical Industry Co., Ltd. DB12 DC03 EB38
Claims (4)
補修する方法であって、 前記既設の外壁に有する古い仕上げ塗膜層の上に、伸び
率４００〜９００％の防水塗膜層を厚み１．０〜１．５
ｍｍで形成する工程(a)と、 前記防水塗膜層の上に、新たな仕上げ塗膜層を形成する
工程(b)とを含む外壁の補修方法。1. A method for repairing an existing outer wall having a finish coating layer on a surface, comprising: a waterproof coating layer having an elongation of 400 to 900% on an old finish coating layer on the existing outer wall. The thickness 1.0-1.5
A method of repairing an outer wall, comprising: a step (a) for forming a waterproof coating layer in mm; and a step (b) for forming a new finish coating layer on the waterproof coating layer.
げ塗膜層と同じ塗料からなる請求項１に記載の外壁の補
修方法。2. The method for repairing an outer wall according to claim 1, wherein the new finish coat layer is made of the same paint as the old finish coat layer.
脂塗料からなる請求項１または２に記載の外壁の補修方
法。3. The method for repairing an outer wall according to claim 1, wherein the waterproof coating layer is made of a moisture-curable urethane resin paint.
を備える外壁の補修構造。4. An existing outer wall structure having an old finish coating layer obtained by the method according to any one of claims 1 to 3, and a waterproof coating layer disposed on the old finish coating layer. A repair structure for an outer wall, comprising: a new finish coating layer disposed on the waterproof coating layer.
Priority Applications (1)
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| JP2001070763A JP2002263568A (en) | 2001-03-13 | 2001-03-13 | Method for repairing outer wall and repairing structure |
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| JP2001070763A JP2002263568A (en) | 2001-03-13 | 2001-03-13 | Method for repairing outer wall and repairing structure |
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| JP2002263568A true JP2002263568A (en) | 2002-09-17 |
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ID=18928574
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007239341A (en) * | 2006-03-09 | 2007-09-20 | Kankyo Techno:Kk | Exterior repair method for building |
| CN105888287A (en) * | 2016-05-12 | 2016-08-24 | 郑州市正岩建设集团有限公司 | Masonry structure exterior wall crack repairing method |
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